An Anonymous Message Board Where Everything Disappears

No account. No username. No followers. You write something. It lives for 24 hours. Then it is gone.

Letheca is a browser-based anonymous message board for brief, unfiltered expression without a permanent profile attached to what you say.

There is one exception: if a post earns enough echoes, one sentence survives as a Ghost Trace in the public archive.

How It Works

1. Open the board with no signup.
2. Write something up to 500 characters.
3. Others can echo what resonates.
4. After 24 hours, the post vanishes.
5. If echoes cross the threshold, one sentence survives forever.

What Letheca Is Not

• Not a chat app with DMs or reply chains.
• Not a social network with profiles and followers.
• Not permanent by default. Disappearing is the rule.

Enter the Board →

FAQ

Do I need an account?
No. Never.

Can anyone see who I am?
No identity is attached to posts.

What is a Ghost Trace?
A preserved sentence from a post that received enough echoes. See Ghost Traces.

What happens after 24 hours?
Your post is deleted permanently.